Right side face swelling and spreading to eye and lip?

Get evaluated. With your symptoms i would worry about an allergic reaction or an infection. You need an immediate evaluation because the treatment and seriousness depends on the diagnosis.
Depends. If it is truly the left side to the midline of the face, it could be what is termed a dermatome, and possibly the beginnings of shingles. Just a guess, that would need examination and testing to fully diagnose.